Best Thermometer Min / Max with Magnet | Sper Scientific | 736680 Deals

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The Sper Scientific thermometer is a 'recording minimum maximum' device in that the highest and lowest temperatures experienced by the unit are set by little 'floats' inside the glass tube. As the temperature rises, the mercury climbs (in the right leg of the U-shaped tube) and the float is pushed higher. The float remains in the highest position as the temperature, and the mercury, fall. The mercury retreats to and rises in the left leg to indicate the lowest temperature... and the float in that left leg will be remain at that lowest temperature reading.

The included magnet, attached by a cord to the thermometer, is used to reset the floats--hopefully after the user has marked down the readings.

This is solid instrument and I recommend it for back-yard weather enthusiasts.

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This is a clever device that uses two thermometers to record the high and low temperatures in a space like a greenhouse, or a garage, or a hen house. Little floats inside the columns are reset with a magnet on a string. I like it especially because it is such an elegant low-tech time-tested solution. It looks terrific and if you think you need one, get two, because you will want another one for sure.

Best Deals on Thermometer Min / Max with Magnet | Sper Scientific | 736680

I chose this "old school" version over the many digital varieties because there's not much that can go wrong with it. The housing is fairly study plastic, so unless you hit it with a hammer, it's likely to last a long time. It's simple, easy to read, and it helped me get my plants in the ground earlier than if I had just listened to the weather reports, since it gave me a reading at the level of my raised bed garden soil. Since I'm planning on setting up a hoop house, this will be a great tool, not only for monitoring overnight frost, but also for peak temperatures in the summer when extra shade and ventilation will be required.

For more detail, check this blog post at The Zone 3 Gardener. Link:

zone3gardener.drupalgardens.com/content/min-max-thermometer-good-investment-your-garden

Honest reviews on Thermometer Min / Max with Magnet | Sper Scientific | 736680

the first did not have the reset magnet. i called the company and had a replacement within two days. excellant service

Find helpful customer reviews and review ratings for Thermometer Min / Max with Magnet | Sper Scientific | 736680

After reading the poor reviews on the electronic remote sensor types, and experiencing disappointment with one I purchased, this seems to be an accurate though less convenient alternative.

Sometimes 18th century technology still serves well.